Perhaps you should try some spelling variations:
thanh thi » thanh tai, nhanh thi, thanh thu
thanh tri » thanh tra, thanh tai, chinh tri
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cham » va chat, va tham
duc van » duc tan, duc manh, duc phan
cua tre » cua te, cuu tre, cua triet
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang xa hoi. hieu va cham ((duc van) OR (duc va)) ((thanh thi) or (thanh tri)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu va cham ((duc van) OR (duc va)) ((thanh thi) OR (thanh tri)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. hieu va cham ((duc van) OR (duc va)) ((thanh thi) or (thanh tri)) cua tre*".